Combine the best of both worlds with the b-Vibe Ringer Cock Ring and Prostate Plug! This two-in-one toy features a super flexible silicone cock ring to restrict blood flow for harder and thicker erections, while the prostate plug intensifies the experience from the rear. The b-Vibe Ringer Cock Ring and Prostate Plug is completely waterproof, which makes it ideal for use in the bath or shower and allows for easy cleaning. One Year Warranty.